Question:medium
Monochromatic light of wavelength λ = 4770 ˚A is incident separately on the surfaces of four different metals A, B, C and D. The work functions of A, B, C, and D are 4.2 eV, 3.7 eV,3.2 eV and 2.3 eV, respectively. The metal/ metals from which electrons will be emitted is/are:
Monochromatic light of wavelength λ = 4770 ˚A is incident separately on the surfaces of four different metals A, B, C and D. The work functions of A, B, C, and D are 4.2 eV, 3.7 eV,3.2 eV and 2.3 eV, respectively. The metal/ metals from which electrons will be emitted is/are:
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For photoelectric emission, the photon energy must be greater than or equal to the work function of the metal
Updated On: Nov 28, 2025
- A, B, C and D
- A, B and C
- C and D
- D only